Update specialize.py

Author: BobTheBuidler

mypyc/irbuild/specialize.py

@@ -717,7 +717,7 @@ def get_literal_str(expr: Expression) -> str | None:
             elif (
                 isinstance(expr, RefExpr)
                 and isinstance(expr.node, Var)
-                and expr.node.final_value is not None
+                and expr.node.is_final
             ):
                 return str(expr.node.final_value)
             return None